408280880 has 40 divisors (see below), whose sum is σ = 1084862112. Its totient is φ = 139981824.

The previous prime is 408280871. The next prime is 408280883. The reversal of 408280880 is 88082804.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (408280883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363977 + ... + 365096.

Almost surely, 2^408280880 is an apocalyptic number.

408280880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

408280880 is an abundant number, since it is smaller than the sum of its proper divisors (676581232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

408280880 is a wasteful number, since it uses less digits than its factorization.

408280880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729093 (or 729087 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 38.

The square root of 408280880 is about 20205.9614965485. The cubic root of 408280880 is about 741.8561147709.

The spelling of 408280880 in words is "four hundred eight million, two hundred eighty thousand, eight hundred eighty".